1. Technical Field
The invention relates to bolts, particularly to quick release bolts.
2. Related Art
A conventional bolt 20, as shown in
However, the bolt 20 must be progressively rotated to finish fastening. It may spend much time and labor. There is no easy and fast solution in the market.
An object of the invention is to provide a quick release fastener, which can quickly fasten or release something to be fastened.
To accomplish the above object, the quick release fastener of the invention includes a threaded rod, a head, a pressing washer and a rotator. The head is firmly connected on an end of the threaded rod and is a hollow cylinder with a central hole. An axis of the head is perpendicular to that of the threaded rod. The pressing washer is passed through by the threaded rod and placed under the head. The rotator is a U-shaped body with two symmetrical and parallel cams and a recess therebetween. Each of the two cams has a pivot hole. The head is embedded in the recess, and a pivot is inserted into the two pivot holes and the central hole. The two cams progressively press or release the pressing washer while the rotator is being rotated about the pivot.
Please refer to
The recess 63 is substantially identical to the head 40 in shape. Thus the head can be embedded in the recess 63. A pivot 64 is inserted into the two pivot holes 62 and the central hole 42 to make the rotator rotatable. The threaded rod 41 can be rotated by coaxially rotating the rotator 6 without a screw driver.
Preferably, a top surface of the rotator 6 may be provided with one or more inserting holes 60, and a handle 8 is inserted into the inserting holes 60. The handle 8 can help to exert a force to the rotator 6. Furthermore, a lower side 50 of the pressing washer 5 is arc-shaped. A nut 7 can be added to the threaded rod 41.
As shown in
It will be appreciated by persons skilled in the art that the above embodiment has been described by way of example only and not in any limitative sense, and that various alterations and modifications are possible without departure from the scope of the invention as defined by the appended claims.